eslint/tests/lib/rules/max-classes-per-file.js

   1 /**
   2  * @fileoverview Tests for max-classes-per-file rule.
   3  * @author James Garbutt <https://github.com/43081j>
   4  */
   5 "use strict";
   6
   7 //------------------------------------------------------------------------------
   8 // Requirements
   9 //------------------------------------------------------------------------------
  10
  11 const rule = require("../../../lib/rules/max-classes-per-file"),
  12     { RuleTester } = require("../../../lib/rule-tester");
  13
  14 //------------------------------------------------------------------------------
  15 // Tests
  16 //------------------------------------------------------------------------------
  17
  18 const ruleTester = new RuleTester({ parserOptions: { ecmaVersion: 6 } });
  19
  20 ruleTester.run("max-classes-per-file", rule, {
  21     valid: [
  22         "class Foo {}",
  23         "var x = class {};",
  24         "var x = 5;",
  25         {
  26             code: "class Foo {}",
  27             options: [1]
  28         },
  29         {
  30             code: "class Foo {}\nclass Bar {}",
  31             options: [2]
  32         }
  33     ],
  34
  35     invalid: [
  36         {
  37             code: "class Foo {}\nclass Bar {}",
  38             errors: [{ messageId: "maximumExceeded", type: "Program" }]
  39         },
  40         {
  41             code: "var x = class {};\nvar y = class {};",
  42             errors: [{ messageId: "maximumExceeded", type: "Program" }]
  43         },
  44         {
  45             code: "class Foo {}\nvar x = class {};",
  46             errors: [{ messageId: "maximumExceeded", type: "Program" }]
  47         },
  48         {
  49             code: "class Foo {} class Bar {}",
  50             options: [1],
  51             errors: [{ messageId: "maximumExceeded", type: "Program" }]
  52         },
  53         {
  54             code: "class Foo {} class Bar {} class Baz {}",
  55             options: [2],
  56             errors: [{ messageId: "maximumExceeded", type: "Program" }]
  57         }
  58     ]
  59 });